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Do all major brands of network "cores" strip the MAC address from packets?

By TwoGun45 ·
When a packet crosses subnets, is it common practice for the cores such as a Cisco 6500 series or the Nortel ERS-1624 to strip the MAC address?

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Not sure about stripping

by NetMan1958 In reply to Do all major brands of ne ...

I'm not sure what you mean by "strip the mac address" but the source and destination mac addresses do change when a packet crosses a layer 3 device.

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Let me clarify

by TwoGun45 In reply to Not sure about stripping

When the source MAC cosses a layer 3 boundry, does not the MAC address change to the gateway outbound inteface MAC address?

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Source Mac

by NetMan1958 In reply to Let me clarify

The source mac should be the mac address of the exit interface on the layer 3 device and the destination mac will be the mac address of the destination interface on the next hop device.

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